mitsubishi plc addressing, instruction & device list quick ref v2.pdf
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Mitsubishi FX1S, FX3G & FX3U PLC
Basic Addressing, Instruction, Device List Quick Reference
Inputs:
The input device numbers are octal with prefix of ‘X’. Example: X0 to X7, X10 to X17, X20 to X27 etc.
Outputs:
The output device numbers are octal with prefix of ‘Y’. For example: Y0 to Y7, Y10 to Y17, Y20 to Y27 etc.
Internal Relays / Flags:
Commence at M0. See attached device lists in performance specifications for FX1S, FX3G and FX3U for
detail of addressing numbers general, latching and special relays.
Timers:
These are on-delay. Example instruction; apply to an output coil “T0 K50” for a 5 second timer. The ‘K’ is
constant (i.e) decimal. T0 is a 100 millisecond timer, thus setting it to a ‘constant of 50’ provides for 5
seconds.
Refer to attached device lists in performance specifications for FX1S, FX3G and FX3U Timer addressing
numbers for the 100ms, 10ms and 1ms type as well as general / latching.
Counters:
Example instruction; apply to an output coil “C0 K10” for a 10 pulse count-up counter. The ‘K’ is constant
(i.e) decimal.
To reset the above counter use the output instruction “RST C0”.
Refer to attached device lists for further information.
Have PLC Change Screen of a connected GOT:
First the Screen Switching data memory location needs to be identified from the GOT ‘environmental
settings’ in GT Works3. For this example we will use D100.
Example instruction; To have the PLC change the GOT to its number 2 screen, apply an output instruction
“MOV K2 D100”. This instruction moves a value of ‘2’ to data memory 100. The GOT will immediately
change to screen ‘2’. Caution: the GOT will remain on screen number ‘2’ for as long as this instruction
remains high. (Tip: initiate instruction from a one shot rising / positive edge trigger contact)
Manuals can be downloaded from the Mitsubishi Technical Section of our website:
www.automationsystemsandcontrols.net.au
FX1S
FX1S
FX3G
FX3G
FX3U
FX3U
FX3U
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